Saw-gage



V. BOYLE.

SAW GAGE.

APPLICATiON FILED JAN. 4,191]. 1,401,560, Patented D66. 27, 1921.

, Z7 3 5HEETSSHEET I,

- Jlg1.

Y 128 PP 13 1 A 1 H1 1 1 111111 LHIHHIHIIHHHHIIIINI 3 11 1 1 ill 00M07":

V. ROYLE.

SAW GAGE. APPLICATION FILED JAN-"1,1917.

Patented Dec. 27, 1921.

3 SHEETS-SHEET 2- .6. E4 2m Fl fiwentor- V. 'ROYLE.

SA GE. APPLICATION JAN.4,19H1

Patented Dec. 27, 1921.

3 SHEETS-SHEET 3- Zwevwtow I UNITED STATES VERN ON BOYLE, OF PATERSON,NEW JERSEY.

SAW-GAGE.

Specification of Letters Patent. Patented Dec. 2'7, 1921.

Application filed January 4, 1917. Serial No. 140,590.

To all whom it may concern:

Be it known that I VERNON Rona, a citizen of the United tates, andresident of Paterson, in the county of Passaic and State of New Jersey,have invented a new and useful Improvement in Saw-Gages, of which thefollowing is a specification.

This invention relates more particularly, to that type of gage known asa bevelingripping gage.

An object is to provide a device of this character which may be veryexpeditiously and accurately adjusted toward and away from, andangularlywith respect to, the saw or cutter, and in which the lower or operativeedge of the fence proper or guide plate may be broughtinto exceedinglyclose proximity to the saw and to thesurface of the work table throughwhich the saw protrudes.

Another object is to provide such a device which is comparatively cheapand simple to manufacture, but which is unusually rigid in operation anddurable.

A further object is to provide a special work-supporting and guidingform which may be firmly and quickly, but removably, attached or securedto the fence proper or guide plate of the gage when it is desired tosaw, in an exactly similar manner, a considerable quantity of work. i i

A still further object is to provide certain improvements in the form,construction and arrangement of the several parts of the device wherebythe above mentioned objects and other features of advantage may beeffectively attained.

A practical embodiment of my invention is represented in theaccompanying drawings, in which,

Figure 1 represents a perspective view of the complete gage fitted uponthe work table. a

Fig. 2 represents a top plan view of the same. i

Fig. 3 represents a vertical section ta ten in the plane of the lineIII-III of Fig. 2, looking in the direction of the arrows.

Fig. 4 represents a vertical section taken in the plane of the line IVIVof Fig. 2, looking in the direction of the arrows.

Fig. 5 represents a transverse section taken in the plane of the lineV-V of Fig. 2, looking in the direction of the arrows.

Fig. 6 represents a detail section taken in the plane of the line VL-VIof Fig. 3, look ing in the direction of the arrows.

Fig. 7 represents a perspective view of the complete gage upon thetable, with the special form secured to the fence or guide plate.

Fig. 8 represents a view similar to Fig. 3, but showing the special formattached to the fence or guide plate.

Fig. 9 represents a transverse central section through the special form,and

Fig. 10 represents a detail section taken in the plane of the line X Xof Fig. 8, looking in the direction of the arrows.

The work table is denoted by 1, and it has a pair of grooves 2, 3,fashioned in the upper. surface thereof, in a well understood manner,for the purpose of slidably mounting the gage. The groove 2 isconsiderably undercut or dovetailed, while the groove 3 is slightlyconstricted toward the bottom, as clearly shown in section in Fig. 5.

The gage comprises a base 4:, which has a tongue or rib 5, on the underside thereof, fitted to slidably engage the guiding groove 3 in the worktable 1. A bolt 6 passes through the base 1, and hasan elongated head?which is dovetailed. in cross section and calculated to slidably fit inthe undercut groove 2. for the purpose of locking the base 4 and partscarried thereby in any selected or predetermined position upon the worktable 1. A thumb nut 8 serves to draw up .the bolt 6 for the purpose ofclamping its head 7 against the side walls of the groove 2, in a wellunderstood manner.

The support 9, for the fen e proper or guide plate, has a pair oflaterally extending L-shaped arms 10, which are pivoted by means ofscrews 11, in the front end of the base 4. This support 9 is held inangular position by a strut 12 which has one end pivoted thereto at 13,and the other end pivoted at 14 in a carriage 15 which is arranged toslide on ways 16 formed on the upper surface of the base 1. A bolt 17pierces the carriage l5 and has an elongated dovetail 16, and hencelocking for the purpose of drawing it shaped head 18 slidably arrangedin an undercut groove 19, located in the upper surface of the ways 16,which has a cross section similar to that of the bolt head 18. A thumbnut 20 serves to tighten up the bolt 1'? for the purpose of locking thecarriage 15 in any predetermined position on the ways the support 9 inany desired angular position. A scale 21, preferably marked in degrees,is engraved at one side of the ways 16, while the front end of thecarriage 15 is beveled down to a sharp edge in order to aid the visualregistering of the carriage 15 with any selected division of the scale,and hence accurately adjusting the support 9 inany desired angularposition. The scale 21 is so graduated and marked with respect to thesupport 9, strut 12 and carriage 15 that, when the front edge of thelatter is in register with any given numeral on the scale 21, thesupport 9 will e at a corresponding degree of angularity with respect tothe surface of the work table 1. Thus, when the front beveled edge ofthe carriage 15 coincides with the degree line marked 40, on the scale21, the support'9 will be at an angle of 40 to the horizontal, etc.

The fence proper or guide plate is inclicated by 22, and it is arrangedto slide upon the support 9 toward and away from the work table 1 andsaw 23. This guide plate is substantially flat and oblong in shape, andhas a centrally disposed transverse groove 24 formed in its rearsurface. This groove is undercut and dovetailed, as in the case of thegrooves 2 and 19, and a bolt 25 traverses the support 9 and has anelongated head 26, which is also of keystone shape in cross section andof such a size as to have a slidin the groove 24. A thumb nut 27 isthreaded on to the end of the bolt 25, up and firmly clamping the head26 against the walls of the groove 24, thereby locking the fence properor guide plate 22 in any selected position on the support 9.

The guide plate 22 also has a rib 23 on its rear side and parallel withthe groove 2%, which rib fits in a correspondingly shaped groove 29, atone side of the support 9, for the purpose of steadying and guiding theplate 22 in its movement on the support.

It will be observed that, in the construction already set forth, thepivot upon which the guide plate and support swing is located a distanceaway from the lower or operative edge of the plate. This enables thelatter to beadjusted down into very close proximity to the work table 1and saw 23, as indicated, for instance. in Figs. 1, 3 and 4:. In sawgages heretofore in use, which have had the pivot pin, upon which thefence or guide plate swings, located'at the lower or operati-ve edge ofthe plate, it has been impossible .such a situation, I

to obtain this close adjustment, and hence there has been a serioushandicap in ripping and beveling thin stuff.

It frequently happens that there is occasion for performing exactly thesame beveling operation upon a comparatively large amount of material,and, to accommodate have devised a form of fixed shape, for the purposeof holding and guiding the several pieces of material as each is passedthrough the same sawing operation. An example of this form is shown inFigs. 7 to 10 inclusive of the drawings. It is denoted by 30, and isseen to be substantially L-shaped in cross section. From the rear of theform, a pair of headed pins project, specifically shown in the presentinstance as screws 31; which pins or screws are fitted to engageapertures 32 formed in the guide plate 22. These apertures are of a formwhich may be described as hole-andslit, that is, they have a round holeat one end while a slit, narrower than the diameter of the hole,progresses laterally from the latter. The rear edges of these apertures32 are inclined away from the hole part, as shown in Figs. 2 and 10.Thus, it will be seen that the form 30 may be firmly but detachablysecured to the guide plate 22, by passing the heads of the pins orscrews 31 through the hole parts of the apertures 32, and then slidingthe form 30 laterally on the plate 22 so as to cause the under sides ofthe heads of the pins or screws 31 to travel upwardly along the inclinedrear walls of the slit portion of the apertures 32.

The form 30 may be composed of wood, and it may have one or more slots33, 34, for the reception of the saw 23. It will be clear that, when theform 30 is fixed in position as described, with the saw 23 traversing agiven slot 33 or 34, exactly the same sawing operation may beexpeditiously performed upon any given number of similar pieces ofmaterial. By varying the position of the slot through which the sawpasses, the character of the sawing operation may be correspondinglyvaried, and any movement of the form requisite to enable the saw tocoincide with another slot therein, may be effected by sliding the guideplate 22 on the support 9, as has already been described.

I believe that the manner of operating this device will be perfectlyapparent to anyone having any familiarity with this art, from theforegoing description taken in connection with thedrawings; but I mayadd that various changes may be resorted to in the form, composition,construction and arrangement of the several parts, without departingfrom the spirit and scope of my invention; and hence I do not intend tobe limited to the specific details herein shown and described except asthey may be included in the claim.

What I claim is: tongue friotionally in the groove, said means A sawgage comprising, a support pivoted operating to draw the plate towardthe supto swing into different angular positions port and temporarilylock it in various adwith respect to the work table and a guidejustments.

5 plate fitted to slide toward and away from In testimony that I claimthe foregoing as the table on said support and having a clove myinvention, I have signed my name this tailed tongue and grooveengagement with 28th day of December, 1916. the support, and means forclamping the VERNON BOYLE.

